Abstract
The J/Ψ decay into a baryon pair and a pseudoscalar meson is computed, for some channels, in lowest order in perturbative QCD, modeling the baryon with a quark-diquark system. We use a set of parameters that has been proposed by some authors in order to fit the proton magnetic form factor G M P, the angular distribution of protons in the processes γγ → pp̄, γp → γp and the width of η_c → γγ.
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Kada, EH., Parisi, J. Study of J/Ψ three-body decays involving baryons and a pseudoscalar meson in the diquark model. Z Phys C - Particles and Fields 70, 303–306 (1996). https://doi.org/10.1007/s002880050107
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DOI: https://doi.org/10.1007/s002880050107